You get one jump. Anywhere on Earth. The moment you decide, you blink out of existence where you stand and reappear at your chosen destination. No return trip, no refund, no second go. Just the one.
The power is yours from birth. You feel it sitting there, somewhere behind your ribs, like a sneeze that never quite arrives. You could use it right now. You could use it tomorrow. You could use it never. That's the problem.
The saver's trap
Most people would never use it.
I'm fairly confident about this, because humans are spectacularly bad at using one-shot resources. We hoard rare items in video games until the final boss, then finish the game with seventy unused elixirs. We save the "good china" for guests who never come. We keep the expensive wine for a special occasion that somehow never arrives, and then one Tuesday we're dead and the wine gets poured out by our kids who prefer lager anyway.
A single-use teleport is the ultimate version of this. Every time you consider using it, your brain whispers: but what if I need it more later?
Escaping a house fire? Useful, sure. But what if next year you're kidnapped? Fleeing a natural disaster? Reasonable. But what if the alternative was nuclear war?
The logic spirals. You can always imagine a worse scenario than your current one. So the teleport sits unused, a permanent insurance policy against a catastrophe that statistically will never happen. And then you die at eighty-four in a hospital bed in Swindon, still holding a teleport you could have used to stand on Machu Picchu at sunrise when you were twenty-two.
The early spenders
Some people would burn it immediately. Teenagers, mostly. A sixteen-year-old with the power to teleport anywhere on Earth is not going to run a cost-benefit analysis. They're going to pop up on the pitch at the Champions League final, or inside the Louvre after hours, or at their ex's house at 2am, and they're going to regret it within a week.
This creates an interesting generational split. The young use theirs on impulse and spend sixty years wishing they hadn't. The old save theirs out of caution and spend sixty years wishing they had. Neither group is happy. The teleport, regardless of whether it's used, becomes a source of lifelong regret.
What the economists would say
There's a real phenomenon called the endowment effect, studied extensively by behavioural economist Richard Thaler. People value things they own far more than identical things they don't. In experiments, people given a coffee mug demanded roughly twice the price to sell it as others were willing to pay to buy it. The same mug. Just owning it changed its perceived worth.
A single-use teleport would be the most endowment-affected object in history. You'd value the potential of the teleport far above any single use of it. The unused possibility feels more precious than any destination. Economists call this option value, and it would paralyse almost everyone.
You don't want to go to Tokyo. You want to be the person who could go to Tokyo.
The practical cases
Strip away the philosophy and think about when a teleport genuinely changes your life.
You're drowning. You're trapped in a collapsed building. You're in a war zone. You're being chased by someone who will kill you if they catch you. In these moments, a teleport is worth more than anything on Earth. The problem is that most people will never face these moments. The average British person's most life-threatening experience is a dodgy overtake on the A303.
For the vast majority, the optimal use isn't survival. It's something mundane made extraordinary. You're offered your dream job in another country but can't afford to move. Your parent is dying in a hospital twelve time zones away and the next flight is in nine hours. Your partner lives on the other side of the world and you haven't seen them in six months.
These quiet emergencies are where most teleports would actually get spent, if anyone had the nerve to spend them.
A black market for jumps
If everyone has one teleport, someone is going to try to buy yours. Not the power itself (let's say it's non-transferable), but your willingness to use it on someone else's behalf.
Imagine a billionaire whose child has been kidnapped in a foreign country. Normal extraction would take days. You could be there in a blink. Governments would want teleport-holders on standby for disaster response, hostage rescue, intelligence delivery. The unused teleport of every citizen becomes a strategic resource.
Military applications are obvious. One soldier, one teleport, right into the target location. Every nation's defence policy now accounts for the fact that any citizen could materialise anywhere without warning. Border security becomes conceptually meaningless. A wall doesn't stop someone who can simply appear on the other side.
Though you'd only get one spy into the facility. After that, your intelligence budget is back to normal.
The philosophical weight
Here's what would actually keep me up at night. The teleport forces you to answer a question most people never have to confront directly: what is the single most important moment of your life going to be?
We like to think life is a collection of moments, all valuable, all contributing. The teleport collapses that comfortable fiction. You get one extraordinary intervention. One moment where physics bends to your will. Choosing when to use it means ranking every future experience you might have, and picking the one that matters most.
That's not a travel decision. That's an existential audit.
And most people would fail it, not because they chose wrong, but because they chose nothing. They'd sit on the power forever, comforted by its presence, terrified of its absence, until the window closed and the question answered itself.
The cruelest thing about a one-use teleport isn't the limit. It's that it makes you confront exactly how afraid you are of commitment. One jump, anywhere on Earth, and the real destination you're avoiding is a decision.